| Opterra Solutions Inc. OK | Agriculture & Forestry | 0 | — | A |
| Opterra Solutions Inc. SC | Agriculture & Forestry | 0 | — | F |
| Opterra Solutions Inc. TN | Agriculture & Forestry | 0 | — | A |
| Opterra Solutions Inc. TX | Agriculture & Forestry | 0 | — | F |
| Opterra Solutions Inc. VA | Agriculture & Forestry | 0 | — | F |
| Optessa USA, Inc. NJ | Professional & Technical Services | 2 | $74,870 | — |
| Optex Systems, Inc. TX | Manufacturing | 0 | — | F |
| Opti-Luxx, Inc. MI | Manufacturing | 0 | — | A |
| Opti9 Technologies LLC NY | Information & Media | 2 | $102,500 | — |
| Optibelt Corporation IL | Wholesale Trade | 0 | — | A |
| Optical Cable Corporation NC | Manufacturing | 0 | — | A |
| Optical Cable Corporation TX | Manufacturing | 0 | — | A |
| Optical Cable Corporation VA | Manufacturing | 0 | — | A |
| Optical Filters USA, LLC PA | Manufacturing | 0 | — | A |
| Optical Suppliers Inc. HI | Manufacturing | 0 | — | A |
| Optical Telecom GA | Construction | 0 | — | A |
| Optical Telecom TX | Construction | 0 | — | F |
| Opticote, Inc. IL | Manufacturing | 0 | — | A |
| Optics1 Inc NH | Manufacturing | 0 | — | F |
| OPTIFORMS HOLDCO LLC CA | Manufacturing | 0 | — | A |
| Optigen Inc. FL | Real Estate | 0 | — | A |
| Optigrid, LLC IA | Manufacturing | 5 | $163,164 | — |
| OPTILINE ENTERPRISES LLC NH | Construction | 0 | — | F |
| OPTILINE GYPSUM LLC NH | Construction | 0 | — | F |
| Optim Medical Center Tattnall GA | Healthcare & Social Assistance | 0 | — | B |
| Optima Aero USA Inc. TX | Transportation & Warehousing | 0 | — | A |
| Optima Belle LLC WV | Manufacturing | 0 | — | A |
| Optima Building Services, Inc. CA | Administrative & Waste Services | 0 | — | A |
| Optima Chemical Group, LLC GA | Manufacturing | 0 | — | A |
| Optima Courier MA | Wholesale Trade | 0 | — | F |
| Optima Executives LLC NH | Administrative & Waste Services | 0 | — | A |
| Optima Foods Inc NY | Wholesale Trade | 0 | — | A |
| Optima Hospitality & Import Export Inc. dba Mediterrania Grill CA | Accommodation & Food Services | 0 | — | A |
| Optima Logistics LLC WA | Transportation & Warehousing | 0 | — | F |
| Optima Millwork and Stone, Inc. CA | Manufacturing | 0 | — | A |
| Optima Overnight CT | Transportation & Warehousing | 0 | — | A |
| Optima Overnight MA | Transportation & Warehousing | 0 | — | A |
| Optima Overnight RI | Transportation & Warehousing | 0 | — | A |
| Optima Power and LV, Inc. CA | Construction | 0 | — | A |
| Optima Real Estate Development LLC CA | Construction | 0 | — | A |
| Optima RPM, Inc. CA | Construction | 0 | — | D |
| OPTIMA TAX RELIEF, LLC CA | Professional & Technical Services | 2 | $139,420 | — |
| Optimae Home Health Services, Central Iowa IA | Healthcare & Social Assistance | 0 | — | F |
| Optimae Life Services IA | Healthcare & Social Assistance | 0 | — | F |
| Optimae Lifeservices IA | Healthcare & Social Assistance | 0 | — | F |
| Optimae LifeServices 2200 JFK Rd. Dubuque, IA IA | Healthcare & Social Assistance | 0 | — | A |
| Optimal Delivery @ Altitude LLC CO | Transportation & Warehousing | 0 | — | F |
| Optimal Dynamics, Inc. NY | Information & Media | 1 | $170,000 | — |
| Optimal Electric Vehicles, LLC. MI | Professional & Technical Services | 0 | — | A |
| Optimal Energy, LLC RI | Professional & Technical Services | 1 | $90,422 | — |
